diff options
| -rw-r--r-- | svx/source/sdr/overlay/overlaymanagerbuffered.cxx | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/svx/source/sdr/overlay/overlaymanagerbuffered.cxx b/svx/source/sdr/overlay/overlaymanagerbuffered.cxx index 365171757934..0e62cd73a37a 100644 --- a/svx/source/sdr/overlay/overlaymanagerbuffered.cxx +++ b/svx/source/sdr/overlay/overlaymanagerbuffered.cxx @@ -52,11 +52,13 @@ namespace sdr::overlay const Point& rOriginNew = getOutputDevice().GetMapMode().GetOrigin(); const bool bScrolled(rOriginOld != rOriginNew); + if(bScrolled) { - // get pixel bounds - const Point aOriginOldPixel(mpBufferDevice->LogicToPixel(rOriginOld)); - const Point aOriginNewPixel(mpBufferDevice->LogicToPixel(rOriginNew)); + // get pixel bounds (tdf#149322 do subtraction in logic units before converting result back to pixel) + const Point aLogicOriginDiff(rOriginNew - rOriginOld); + const Size aPixelOriginDiff(mpBufferDevice->LogicToPixel(Size(aLogicOriginDiff.X(), aLogicOriginDiff.Y()))); + const Point aDestinationOffsetPixel(aPixelOriginDiff.Width(), aPixelOriginDiff.Height()); const Size aOutputSizePixel(mpBufferDevice->GetOutputSizePixel()); // remember and switch off MapMode @@ -64,7 +66,6 @@ namespace sdr::overlay mpBufferDevice->EnableMapMode(false); // scroll internally buffered stuff - const Point aDestinationOffsetPixel(aOriginNewPixel - aOriginOldPixel); mpBufferDevice->DrawOutDev( aDestinationOffsetPixel, aOutputSizePixel, // destination Point(), aOutputSizePixel); // source |